20462137 has 2 divisors, whose sum is σ = 20462138. Its totient is φ = 20462136.

The previous prime is 20462093. The next prime is 20462149. The reversal of 20462137 is 73126402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16152361 + 4309776 = 4019^2 + 2076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20462137 is a prime.

It is equal to p_1298014 and since 20462137 and 1298014 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (20462837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10231068 + 10231069.

It is an arithmetic number, because the mean of its divisors is an integer number (10231069).

Almost surely, 2^20462137 is an apocalyptic number.

It is an amenable number.

20462137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20462137 is an equidigital number, since it uses as much as digits as its factorization.

20462137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20462137 is about 4523.5093677365. The cubic root of 20462137 is about 273.5165832773.

Adding to 20462137 its reverse (73126402), we get a palindrome (93588539).

The spelling of 20462137 in words is "twenty million, four hundred sixty-two thousand, one hundred thirty-seven".